What occurs during acute inflammation
1-2 mins post injury
RUBOR, CALOR, TUMOR, DOLOR (redness, pain, swelling, heat)
Chronic inflammation
weeks to years
What can cause granulomatous inflammation?
sarcoid, TB, syphilis, leprosy, histoplasmosis, suture/vascular graft
What are some examples of local and systemic factors that could effect wound healing
local = decreased blood supply, inability to form clots, local infection
systemic = diabetes, decreased peripheral blood flow, infection, malnutrition, increased glucocorticoid production, immunocompromised pts, systemic infection
What are 4 types of hypersensitivity reaction?
ACID
Type 1: Anaphylaxis
Type 2: Cytotoxic
Type 3: Immune complex
Type 4: Delayed
Describe Type 1 hypersensitivity
Anaphylaxis
Allergen activates B-lymphocytes & IgE antibodies which bind to mast cells and basophils
- calcium enters the cell & degranulates
- FIRST AND FAST reaction
Describe type 2 hypersensitivity cytotoxic
IgG & IgM abs bind to antigen causing cell destruction
Ex. Rh dz, rheumatic fever
Describe type 3 hypersensitivity - immune complex mediated
Ag/Ab complex activates complement response
- triggers attack on neutrophils and release lysosomal enzyme
Ex. SLE and serum sickness
Describe type 4 hypersensitivity
Delayed or cell-mediated type IV
SLE
F
- discoid lupus
- photosensitivity
- renal disorder
- neurological disorder
- immunological disorders
(+) ANA
joint pain, dry eye, peripheral keratitis (infiltrates), photophobia, neuro-ophthalmic complications (edema, papilledema)
- skin, kidney, heart, joints
RA
F, 40-50yo
(+) RF
Ocular SE
- K sicca, scleromalacia perforans, PUK, PK, choroiditis, retinal vasculitis, episcleral nodules, RD, ME, papilledema
NECROTIZING SCLERITIS WITHOUT INFLAMMATION
JIA
<6 yo
(-)RF (+) ANA
Sjogrens
F, 40-60yo
2 types:
primary = dry eye + dry mouth
secondary = dry eye + dry mouth + RA
Sarcoidosis
Idiopathic, AA, F
(+) ACE, chest X-ray
asymptomatic, breathing difficulty, dry cough
dry eye, chronic dacryoadenitis, chronic bilat ant gran uveitis, CN7 palsy , vasculitis (candle wax dripping), vitritis (cotton ball opacities)
optic nerve (unilateral disc edema or papilledema) = WORST OUTCOME
Ankylosing spondylitis
Bamboo spine, sacroilitis causing lower back pain & IMPROVES w/ exercise & NSAID
(+) HLAB27, sacroiliac x-ray
What is (+) HLAB27 associated with?
UCRAP
ulcerative colits
crohns disease
reactive arthritis
ankylosing spondylitis
psoriatic arthritis
Reactive arthritis
can’t see, can’t pee, can’t climb a tree
Young male
Fever
conjunctivitis, ureithritis, arthritis
(+) HLAB27
Psoriatic arthritis
asymmetric, peripheral small joint pain
TX: UVB light & methotrexate
(+) HLAB27
Which autoimmune disease causes (+) ANA
JIA
Sjogrens
Lupus
Most common cause of episcleritis?
idiopathic
others: RA, lupus, UCRAP
Which dz is also known as the ‘great mimic’
syphilis
can cause nongran and gran uveitis
Which autoimmune dz causes nongran uveitis
JIA
UCRAP
syphilis great mimic
Which autoimmune dz cause gran
sarcoid
TB
syphilis great mimic
which autoimmune dz can cause optic dz?
sarcoid
lupus
syphilis great mimic